Electric-range switch



l e. vv, @comme ELECTRIC RANGE SWITCH. APPLICATION FILED SEPT.29. 191D.

Patented Sept. 13, 1921.

2 SHEETS-SHEET 2A an/n?? A :eniifm relates te electi'ie swiclies ieulaily SWitehes for controlling ,.iiineetiens; 'for the lieai'ng elementsvof felici; ie einige, the elijeet of my invenkiiei'l heilig pievifle :in improved general inetiilleiicn el liis ype and also an impoved swi'ch construcion.

The present eppliceien is a flwisien of my empemlieg application Serial No. 194,932, filled @Kimber 5, lill?.

)it has been commen pi'acice to ceiirol the hee-eee imie elec-iie :ranges by switches ci cem-mein. ypeS imi: pui'iculzuly designed 'for this service, anni te inclini: ithem in exposed poeiiicn upeii llie fifmc plate e? die .range in the eiclinniy manne? el' Surf ce swi'rclies. This neit eniy exposes them te the eiimgei of injury during shipment and. use, but is@L mme less mukeei a practice, lacking m gered ifelzmanship en fl design lyitlvi respect 'sie elle pertieulai iieeels of lie metella'nen. ll/ leieeves elle erilifnery surface swiclx com iiieefsmeiely e one-piece bases@ that 1n caffe injuig' tl'ieeio or cleiangemen ci the meglieiiieifi czuied tl1e1eljjf,i'ie necessary io dieealle eniife Swicll end replace l: by

3l/1 one. This eiieils renewed (zetmee- G the-simens email "titer lines foy lle e smicli. lem. ieella'iou ie requen'ly undertaken mi Skilled in lille mit? time cone likely to be wrongly made, Wili meer 'i inging dange be the @pewter of @he as well as ie the heater unit md 'veiieial ineallfiion. This: is ggziiticu.n i *ce occur 'if diereii make of Qbeziuecl for ilie defect-ive ene, een lieppens that imelie-i swieii. mali-e the @ne replaced not in some cases a pme-e-ive mixed ever flush switches 'et the emelcl lies been Specieain of Leiten; 'Patent nieuwe Sepe, 13, 19ml,

Patent No. 1,323,047, dated November 25,

Serial NG. 327,686.

perforated to Apermit the Switch operating' ihumb pieces and stems to project there l'eugh; but lie latter are still exposed te.

le is thue possible. te mali-e like impariam comiecimxs te the line ami heater at elle fzncemy, leaving the Switch block, Wlgiicn is 'apt to be injured in transit, to be assembled when. the range is installed; 'anch second, a special casing fer the b atery of switches mul by which the switeheare carried, huf; hl' meting the' neceseity of drilling uml iep m53' holes iii the range imm', for ille holding Screws of each switch. To these pari 'L el advantages vai'imls (leail features ef mpcovement in zmgemcnt and curi-- sructien will appear from the following specicatien and the accompanying drawingza, in which- Figue l is n front elevation of perien of a, range showing a switch inscallation, in which my im'emion is emeoclied in one ferm;

Fig. 2 i Fig; l;

ig 3 is am Merged tace View of the eem nec'ien bleek;

is :l secien such as Fig. 9 but silencing; mefiiied eensructieii; and

is section on lie lime 5-5 ci' Fig. 4.

The presentswitcli instullaicm is illusn limited in asseeiaiion with peii0n of an electr-ic range. @ne of the Seveial elecuic heating units l() commonly employ-ed in s, range Vis Shown mounteci as usual iii che Viep late ll of elle range. Upoii thel front verheel wall l2 of lie range is mounted e, gieup of swiclies, one 'for each heating unit.

The leeds 13, 14 anni l5 from lie high, leW and meelium resistance connections of eeeli lieatei mii@ are carried through a, nele section oil ihe line 2--2 @ai grr 16 in the front plate 12 beneath each switch, passed through separate holes 17 in the insuating connection block 18 and secured to their respective terminal plates 19 mounted on the outer face of lthe block. The power mains 20 and 21 which run along the inner face of the front wall -12 of the range are tapped at each switch by branch leads 22 and 23, which also pass out through the hole 16 and through holes 24 :in the block 18 to their terminal plates 25 on the latter. Each connection block 18 is secured to the wall 12 by screw bolts 26 passing through the connection block and taking into tapped holes in the wall. It will be noted that the block 18 is of less thickness than the marginal overhang 27 of the range top, and is thus protected by the latter from mechanical injury during shipment of the ran e. A t the same time all the connections to t 1e mains and to the heater units maybe made at the factory, leaving to the electrician who installs the range only the assembly of the several switches 29 upon/ the several blocks 18.

The detail construction of the switch does not enter into the subject matter of the present divisional application, and it sulices to point out that each switch base 29 carries switch terminals asA shown in my co-pending application, adapted to be electrically connected to the several terminal plates 19 and 25 on the connection block by screw bolts, of which one is shown inFig. 2 at 30. The proper positioning of the switch base on the connection block 18 is assured by a lug 31 on the outer face of the block which takes into a corresponding notch 'in the juxtaposed face of the switch base. This lug is also engaged by the switch casing 32 which is thereby not only held against rotation, but located in such position that the indicating' dial 33 mounted thereon is properly associated with the switch mecha nism. The installing electrician, therefore, has only to mount the several switch bases on the several connection blocks 18. an op eration which is quickly and readily done by screwing the bolts 30 of the several terminals ot each switch into the tapped holes in the several terminal plates 19 and 25 on the blocks 18. Inasmuch as the proper positioning of each switch on its block 18 is located by the boss 31, and all the connections for the mains and heater branches to the block are already made, it is obvious that the installation of the switches may be made by an .electrician of ordinary skill and not especially familiar with range conditions, or even by a layman. In a construction of this type it is possible to pack the switches in a special independent receptacle wherein they are protected against injury during shi ment. n

`the modified Construction vshown in Figs. 4 and 5, the battery of switches for the range is mountedwithin a special casing 34 common to allthe switches and secured in )any suitable manner on the front wall 12 of position more convenient to the attendant The connection block 37 which is here shown ot rectangular shape carries the terminal plates for the main and heater branch leads as in the construction first described, but instead of being mounted on the front wall of the range is hung by stra e 38 from the face 35 of the casing 34. T e switch bases 29 may therefore be shipped separately and assembled upon the connection blocks 37 after the ran e is installed, just as in the construction .rst described.

`Various other modifications will readily occur to those skilled in the art which do not depart from what I claim as my invention.

I claim- 1. The combination with an electric range having a front wall and overhanging top, ot an electric switch having a base supported in protected position on said front wall bclow the overhang, main and branch termi# nals on the outer face oi. said base, and an independent switch body adapted to be secured to said base and having switch terminals adapted to be electrically connected to the corresponding' main and branch terminals on thel base, substantially as described.

2. The combination with an electric range haring a front wall and overhanging top, of a series of electric switcheshaving bases 1supported in protected position on said front wall below the overhang, a casing common to said switches and serving to support the same in position, main and branch terminals on the outer faces of the switch bases and independent switch bodies adapted to be secured to said bases and having switch terminals adapted to be electrically connectcd to the cooperating main and switch terminals on the several bases.

3. The combination with an electric range hayingf a front wall, of a switch casing mounted on said wall and having un' inclined side face, a battery of Switches supported by said inclined wall of the casing,

and means for leading;` to said switches main and branch wires, for the purpose described,

4. The combination with an electric range of an insulating block mounted thereon in accessible position, electric terminals on said block. mains leading to the range and electrically connected to certain of said termi nals on the block, a heater unit for the range, a group of heater resistance.connections extendine,r therefrom to certain other terminals on said bloeit, together with an independent switch member comprising an insulating' hase adapted lo be mounted on said block` and switch terminals electrically connected to the terminals on said block on the installation of the switch. l I

The combination with 'an electric range, of an insulating block mounted thereon in accessible position, electric terminals on said block. mains leadingl to the range and electrically connected to certain of said termin nals on the hloclt`y a heater unit for the range, a group of heater resistance connections extendimg;r therefrom to certain other terminals on said block, together with an independent switch member comprising an insulating` base adapted to be mounted on said block. and switch terminalselectrically connected to the terminals on said block on the installation ot' the switch, and means for locatingr the switch terminals and the terminals on the block in predetermined relationship on' the assembly of the parts.

In testimony whereof I have signed my name to this specification.

GILBERT W. GooDmDGE. 

